and they are saying that at least preliminarily a letter that was sent to president obama and received on tuesday at an offsite mail facility has tested positive for ricin. when mail goes to the white house, it doesn't actually go to the white house first. it does go to an offsite facility. this is the same case with capitol hill. keep in mind and i know our joe johns has been reminding us of this, there are people that have to process it. and obviously ricin is a very dangerous substance. so there's certainly concern there about the people who had to process this, but this was intercepted on tuesday. and the big question now is, is there a connection here between this letter, this one letter and the other letter sent to senator wicker and the bombings that happened in boston on monday? it certainly is remarkable timing and really makes you question that. jay carney, the white house press secretary was asked about this during a briefing a short time ago. and he wouldn't rule out that there was a connection. i think the reason a lot of people are asking is the bombings happened about 3: